The group that Hitoshi and Yoshiro once crushed after a fierce battle, the angry party. Takeda, a former Black Dragon Society executive who was in the office after the conflict, infiltrated the Black Dragon Society after his release and took the position of executive. At that time, Hitoshi and Yoshiro were following the case where a familiar Sokaiya colluded with a major trading company and embezzled 500 million gold. It was because they were in the Shima of the sand group, and there was information that the general assembly shop borrowed money from the yakuza and was busy repayment. As I proceeded with the investigation, it turned out that the yakuza was the Black Dragon Society. Hitoshi and Yoshiro learn about the existence of Takeda, a former angry party.